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Author Topic: Sirui T-25X  (Read 5054 times)

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« on: June 18, 2016, 06:04 »
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I thought about buying the Sirui T-025X Carbon Fibre tripod. Does anyone have experience with it? It should be fine with my lightweight Sony RX100M3 camera but what about if I want to buy later a better camera like the Sony A7 or any better camera that can take photos with 300DPI. My camera's photos are only 72 DPI despite the 20 MP.


« Reply #1 on: June 18, 2016, 06:20 »
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Don't know about the tripod, but dpi is just a measure of the physical size an image will print. It can be changed to whatever you want in PS and other software.
The actual resolution of the image is given by the size in pixels. That is what matters, at least to some extent.
Quality of image is another matter (and still nothing to do with dpi). More pixels do not necessarily make a better image.

Plenty about it on the net as always.

« Reply #2 on: June 18, 2016, 07:47 »
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My camera's photos are only 72 DPI despite the 20 MP.

You choose the DPI, and you can change it however you want - no camera has a fixed DPI. This is just how many Dots Per Inch that are used when you print the photos. Standard for non-print is 72.

« Reply #3 on: June 18, 2016, 07:50 »
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Yes, I know that but look at Offset.com. No upscaling to 300 DPI allowed. I guess it means the camera must have more MP. Is that correct? I never increase my DPI when I upload to microstock. Is that bad or OK?

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« Reply #4 on: June 18, 2016, 07:51 »
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Offset wants images with 300Dpi and changing it with a software is not allowed

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« Reply #5 on: June 18, 2016, 07:53 »
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Sirui tripods are very good, I've the 025x, 1205x and 2205x. If you don't mind little extra weight, it's better to get the 1205x or 2205x, the 025x is just too short and in many situations, you will find the extra height really useful

« Reply #6 on: June 18, 2016, 08:11 »
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I think you will find that "upscaling", that is making the pixel dimensions of an image bigger in software is what is not allowed.


AFAIK (and to be fair I know nothing about that agency) none of the agencies allow upscaling, but none of them really care about the dpi.


DPI is "dots per inch" incidentally.

« Reply #7 on: June 18, 2016, 08:14 »
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Offset wants images with 300Dpi and changing it with a software is not allowed

Sent from my GT-I9505 using Tapatalk

That doesn't make any sense. The DPI number only tells the printer how much to cram the dots on paper. Changing this in Photoshop doesn't change anything about the image, only how big it will print.

20MP is 20MP. 20 million pixels. No matter if it says 1 DPI or 1 million DPI.

« Reply #8 on: June 18, 2016, 08:26 »
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To put it another way DPI is virtually meaningless as far as images are concerned until you print them.


Terms like "resolution" have various meanings as well depending on the context.


There are various good articles on the web that go into the whole thing in detail. Some more technical than others.

« Reply #9 on: June 18, 2016, 09:01 »
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Yes, I know that. I have to set my images to 300DPI for Photo4me. I tried to find that sentences on Offset but couldn't find it just now on my mobile.

« Reply #10 on: June 18, 2016, 09:37 »
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If you knew then why make the comment in your original post about "any better camera that can take photos with 300DPI" ?


The only reason I said anything about it, based on your post, was to try to help you understand that it's not a case of having a better camera.


My apologies for telling you what you already knew.
« Last Edit: June 18, 2016, 09:41 by Difydave »

« Reply #11 on: June 18, 2016, 10:09 »
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Yes, I know that.

Well, no camera takes pictures at any particular DPI (or ALL cameras can take with 300 DPI if you want to look at it that way, even the cheapest one you can find for $1).

The number assigned in the EXIF data is just an arbitrary number. If Offset don't know this they have never printed an image in their life.

substancep

  • Medical, science, nature, and macro photography

« Reply #12 on: June 19, 2016, 03:35 »
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I'm pretty sure the tripod is perfectly capable, as it has a max load of ~12 lbs. You should try handling the tripod at the shop to see if it's tall enough for your needs, and how it handles.

Offset wants images with 300Dpi and changing it with a software is not allowed

Sent from my GT-I9505 using Tapatalk

Maybe they meant that they do not allow image upscaling, e.g. 2 mp --> 10 mp?
« Last Edit: June 19, 2016, 03:43 by substancep »


 

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